18.Peter is ________ with all his classmates.

问题描述:

18.Peter is ________ with all his classmates.
A.a friend B.friend C.the friend D.friends

应该选择D
be friends with:(1)与.友好
例:He is great friends with the Prime Minister.他与总理的关系很好.
(2)喜欢
例:be friends with roses 喜爱玫瑰花
参阅英汉大词典!